Increasing population mobility and current trend of creating integrated passenger transport systems are opportunities for finding new possibilities to rationalization the railway passenger transport on those lines, where are no passenger trains or where the traffic service is not optimal nowadays. Precondition of reinstating the railway passenger transport is thorough potential passenger analysis, where there are actual geographic, demographic and transport characteristics of the region, where this line is situated. The contribution describes the passenger transport system, timetables rationalization and standards of traffic service in rail passenger transport. Consequently, according to these outputs and demographic and transport characteristic was proposed the rationalization of traffic service at Zvolen – Šahy transport route.